%0 Journal Article %A V. V. Filippov %T An axiomatic theory of spaces of solutions of ordinary %J Doklady Akademii Nauk %D 1985 %P 304-308 %V 280 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1985_280_2_a10/ %G ru %F DAN_1985_280_2_a10